<?php

namespace app\controller;

use app\BaseController;

class Index extends BaseController
{
    public function index()
    {
        return $this->serveSpa('index.html');
    }

    private function serveSpa(string $file)
    {
        $path = rtrim(public_path($file), '/\\');
        if (!is_file($path)) {
            return response('前端尚未编译，请在项目根目录执行 npm run build', 503, [
                'Content-Type' => 'text/plain; charset=utf-8',
            ]);
        }

        return response(file_get_contents($path), 200, [
            'Content-Type' => 'text/html; charset=utf-8',
        ]);
    }
}